This is the second pair ordered from this vendor. The product is flawless in it's construction and although I am am unable to vouch by actual experience, the "proof" claim appears to be valid.
I can vouch for the vendor by actual experience. The prior order had issues arise beyond the vendor's control, but a positive outcome was secured by the extraordinary efforts of High Plains
I have peace of mind when out on my mushroom hunts now. Highly recommend both chaps and High Plains Prospectors.
